Improvement in the manufacture of soap



l NITED STATES WILLIAM JOHNSON, OF NEW YORK, N. Y.

IMPROVEMENT IN THE MANUFACTURE OF SOAP.

Specification forming part of Letters Patent No. 121,787, dated December12, 1871.

To all whom it may concern:

Be it known that I, WILLIAM JOHNSON, of the city, county, and State ofNew York, have invented certain Improvements in theManufacture of Soap;and I do hereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same.

The object of this improvement is to produce an economical andeasily-made soap suitable for all ordinary Washing operations.

In the manufacture of my improved soap I take four hundred pounds oftallow and two hundred pounds of resin and boil them with a solution ofcaustic lye or potash. When sufficiently boiled I allow the mixture tocool down to the tempera ture of about 85 Fahrenheit. Then I add fivegallons spirits of turpentine; eight pounds carbonate of potash; fiftypounds French chalk, or the same quantity of American talc. Thesesubstances are then to be thoroughly mixed or crutched in the boiledmixture. I next sift into the mass ten pounds powdered sal-ainmoniac.The mass, still Warm, is then to be well mixed or crutched, so that thevarious ingredients may be thoroughly diffused and mixed together. Thiscrutching operation should be carefully performed, and care should betaken that no greater heat be used at this time than 85 Fahrenheit, asthe turpentine is very susceptible to evaporation, and some of the otheringredients will degenerate if a higher heat is used and injure thesoap.

The soap thus made is allowed to cool in suitable receptacles and isthen ready for use.

Having thus described my invention, I claim and desire to secure byLetters Patent As an improved article of manufacture, the soap made ofthe ingredients and in the manner herein described.

\VILLIAM JOHNSON.

Witnesses:

GEO. W. MABEE, T. B. MosHER.

